The way we look at it, a single person can only shoot a maximum of 2 guns at one time. I personally feel way more comfortable with my hunting weapons than I do with *ammo wasters* although, one of these might be fun (and practical).
there is a guy about 7 miles from here name of Tony Pucci. He owns Orion 7 and specializes in M1 Garands http://www.m1garandrifle.com/
I buy bulk 30-06 right in the garand clips made in Greece in the 1970’s, when they were using our Garands....its fun trying to shoot all 8 round as fast as you can and still keep ‘em on target.....right now I have only around 700 rounds of garand ammo, but it will do for now...